Radiation-dominated area metric cosmology

Schuller, Frederic P.; Wohlfarth, Mattias N. R.

doi:10.1088/1475-7516/2007/12/013

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Radiation-dominated area metric cosmology

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Schuller, Frederic P.
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Citation

Schuller, F. P., & Wohlfarth, M. N. R. (2007). Radiation-dominated area metric cosmology. Journal of Cosmology and Astroparticle Physics, 2007(12): 013. doi:10.1088/1475-7516/2007/12/013.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-4769-B

Abstract

We provide further crucial support for a refined, area metric structure of spacetime. On the basis of the solution of conceptual issues, such as the consistent coupling of fermions and the covariant identification of radiation fields on area metric backgrounds, we show that the radiation-dominated epoch of area metric cosmology is equivalent to that epoch in standard Einstein cosmology. This ensures, in particular, successful nucleosynthesis. This surprising result complements the previously derived prediction of a small late-time acceleration of an area metric universe.